Ribbon-spool holder for typewriters



Feb. 6. 11923. A4471 0. A. HOKANSON. RrBBoN SPooL HOLDER FOR TYPEwmTms.

FxLED MAY 17, 1920. 2 SHEETS-SHEET l rannte ret. e, ma

. tenen 'OTTO A. HOKANSON, 0F WODSTOCK; ILLINOIS, ASSIGNOB '1:0WOOEDSTCX TYPEWRll-TER COMPANY, OF WOODS'IOCK, ILLINOIS,' .A CORPORATION0F ILLINOIS.

" RIBBON-$19001. HOLDER FOR TYPEWRITERS.

Application led May 17, 1920. Serial No. 381,822.

To all rwhom t may cof/wem: y

Be it known that I, O'l'ro A. HoKANsoN, a citizen of the United' States,`residing at Woodstock, in the county of McHenry and State of Illinois,have invented certain new and useful Improvements inv Ribbon-SpoolHolders for Typewriters, of which the following is a specification. n

This invention has for itsobject the provision of a device of thecharacter named which shall be,of improved construction and operation.

The invention is exemplified in the combination and arrangement of partsshown in lthe accompanying drawings and described in the followingspecification, and itis more particularly pointed lout inthe appendedclaims.v

In the drawings- Fig. 1 is a top plan view' of a ribbon spool holderembodying one form of the present invention; Fig. 2is a vertical sectionsubstantially on line 2-2 ofvFig. 1;

,Fig 3 is a fragmentary elevation looking from the right in Fig. 1;.

Fig. 4 i's a vertical sectional view of a slightly modified form of theinvention; and

of Fi' 4.

Referring first to Figs. 1, 2 and 3, the numeral 10 designates anupright spindle for receiving a'ribbon spool 11, the spindle 10 beingrotatable in any well-known manner for winding the ribbon upon thespool. Mechanism not shown is provided vfor reversing the direction ofrotation of the spindle 10, and this mechanism is controlled by a rod 12extending downwardly through an opening in the spindle 10. The rod 12 isbent laterally and provided witha pin 13 projecting through a slot inthe side of the spindle 10. The spindlelO carries a collar 14 fixed tothe spindle andslotted to accommodate the laterally extending `pin 13 ofthe rod l2. A yoke 16 is pivoted at 17 on the sleeve 14 and providedwith an upwardly extending `nger 18 arranged to project through anopening in' the lower flange 19 of the spool 11 and to be folded into aslot formed in the central spool core when a riblloon is wound upon the`spool in a manner well known in the art. IWhen the ribbon has beencompletely unwound from the Fig. 5 is a horizontal section on line l5--5Apivot 25.

spool 11 the finger 18 will drop by gravity and swing about its pivotalsupport 17 per- In 1tt 1n g the rod 12 to fall and thus shift thedlrection of movement of the mechanism for rotating the spindle 10. Itis understood that the pin 13 extends through an opening 60 in .the yoke16 so that movement of the fin` ger 18 and the yoke 16 about the pivot17 shifts the rod 12 inthe direction of the axis of the spindle 10. 1 l

When it becomes desirable :torl changing the ribbon or other purposes toremove the spool 11 the finger 18 will :tall by gravcity Into theposition shown in Fig. 2, and in former devices of this kind it has beennecessary to hold the finger 18 in its innermost 70 position when aspool with the ribbon wound thereon is replaced upon the spindle. Thepresent invention includes mechanism for more easily holding the finger18 in position to .receive a spool with the ribbon wound thereon. Aeasing 2O is supported in any convenient means upon the frame of thetypewriter and surrounds the spindleV 10 and spool 11. Aslot 21 isformed at one side of the casing, as shown most clearly in Fig.

l3, and a lug 22 is formed .on the wall of the casing adjacent the slot21. A -lever 23 is provided with a lug 24 pivotally supported at 25 onthe lug 22. A slide 26 is mounted in the slot 21 and provided with guidelugs 85 27 and 28 which are formed on the edges of the casing 20adjacent the slide. The upperl end of the slide 26 is provided with aneye 29 which receives a pivot pin 30 carried by a lug 3l on the lever23. The lower end of 90 the slide 26 carries an arm 32 which supports aring 33 surrounding the collar 14 and yoke 16. The ring 33 lies justbelow the projecting end of the pin 13. The' free end of the lever 23 isperforated to receive 95 the upper end of the spindle 10 and is providedwith a finger-piece 34 by which the lever may be swung upwardly aboutits Before the spool 11 can be re moved from the spindle 10 itisnecessary to loo raise the lever 23 to leave the upper end of thespindle free. As the lever is lifted it raises the slide 26 and the ring33 so that the ring engages the pin 13 moving the pin upwardly andswinging the finger 18 into its 1mi` Closed position. The upwardmovement ofV the lever 23 will swing the pin 30 aboutit-he pivot 25 sothat vthe pin 30 moves to the right, as viewed in Fig; 2, in addition toits upward movement. This lateral movement 11o is permitted bythe factthat only two sets of guides 27`and 28 are employed and by the fact thatthe slide 26 is free to move past the end of the pivot 25 since thepivot 25 is 'located entirely at one side ofthe slot 21. If the lever 23is swun'g far enough the pin 30 will move outwardly past the verticalplane of the pivot 25 so that the lever 23 will b'e held open by theweight of the slide 26 and the arm 32. Aslong as the lever remains inits open position the linger 18'Will be held retracted so that theribbon spools can be replaced without interfering with the con-- trolfinger 18. If the lever 23 is swung .to its closed position it willprevent the placing of a spool upon the spindle 10 so that whenever thelever is in position to permit a spool to be placed upon the spindlevthe iinger 18 will be folded inwardly so that it will not interferewith the movement of the spools into place. The spools 11 are providedwithy pins which project into Slots- 36 in the collars 14`to cause/thespools to rotate with the spindle 10. f

The form of the invention shown in Figs. 4 and 5 is quite similar tothat of Figs. 1, 2 and 3, with the exception that the slide 26 carriesan larm 37 extending substantially horizontal and surrounding thespindleil() above the pin 13 instead of below, as in `the previous case.With this form of invention, raising the lever 23 causesthe ring 38carried by the arm 37 to bear against the finger 18 andv force itinwardly linstead of bearing againstthe pin 13, as is done in the devicepreviously described. At the same time the edge of the ring 38 engagesthe lower iange of the spool and partially lifts the spool so thatitmaybe readily grasped for removal.

I claim 1. In a typewriter, a ribbon spool sup'- port, a'control device.connected with lsaid support and movable mto and out of posi-V tion forpermitting a spool vto be placedon said support, and means forintercepting the movement of a ribbon spool into -posltion on saidsupport prior to its engagement with said control device when 'saidcontrol device is improperly positioned to receive said spool.

2. In a typewriter, aribbon spool support,-

i a device for controlling the direction of ro- 4 port, a member movablymounted on said` `support for controlling the operation of a tation of aspool on said support, means for holding said device in position topermit passing of a spool onto said support, and means for ,interceptingthe movement of a spool onto said support while said controlling deviceis out of proper position for receiving said spool. e v

3. In a typewriter, a ribbon spoolsupspool on said support, a device forholding said `member in position for receiving a spool onto saidsupport, and means for accarrier, a device controlled by the ribbon onsaid carrier for governing the operation of said carrier, a devicemovable into and out of position to permit detachment of said carrier,and means controlled by said second-mentioned device 'for assumingcontrol of said ribbon controlled device when said second-'mentioneddevice is in position to permit detachment of said carrier.

5. In a typewriter, a detachable ribbon carrier, means controlled by theribbon on said carrier for governing the movement of vsaid carrier, andmechanism for controlling the movement of said carrier onto and off ofsaid typewriter and for shifting the position of said governing means toprevent its interfering with the movement of said car` rier onto and olfof said typewriter.

6. In a typewriter, a detachable ribbon arrier, a device controlled bythe ribbon on said carrier for governing the operation of said carrier,means movable into and out of position for intercepting the movement ofsaid carrier into and out of operating position on said typewriter, andmeans connected with said intercepting means for shifting the positionlof lsaid governing device to hold said governing'device in position toreceive said carrier when said intercepting means is` `1n position topermit saidy carrier to be placed on said typewriter. 7; In atypewriter, al ribbon spool support, ribbon actuating mechanism, acontrol device for said mechanism mounted on said support and movableinto extended and retracted positions, and manually operated means forshifting said control device.

8. In. a typewriter, a ribbon spool support, a device mounted on saidsupport for controlling the direction ot' movement of a ribbon spoolthereon, and manually operated `means for shifting said devicemtoposition to permit a ribbon spooltto be placed upon said support.-

9. Ina typewriter, a ribbon spool support, a device for controlling thedirection of rotation of aribbon spool on'said support, said devicebeing movablevinto and out of position to permit a ribbon spool to beplaced upon said support, and manually operated means for shifting saiddevice, said operating' means being arranged when in one positiontoextend into the path of a ribbon,

spool as itis moved l onto and oil'l of said support.

10.-`In a typewriter, a ribbon spool sup-v port,- -a ribbon controllngerifor governing the direction of rotation of the spool on saidsupport, a device for shifting the position of said finger, and meansconnected with said device for controlling the movement of a spool ontoand oi' of said support, said means being arranged to intercept themovement of a spool onto said support when said finger is improperlypositioned for receiving a spool.

11. In a typewriter, a ribbon spool support, ribbon control means forgoverning the operation: of a spool on said support, and a lever forshifting the position of said ribbon control means, saidlever beingmovable into and out of the ath of a spool as it moves onto and off ci)said support.

12. In a typewriter, a ribbon spool support, a ribbon control fingermounted on said support, a device for shifting said finger into and outof position to receive a spool on said support, and a lever foractuating said finger shifting means, said lever being movable into oneposition to extend into the path of said spool moving onto and oi ofsaid support.

13. In a typewriter, a ribbon spool support, a device for controllingthe operation of a spool on said support, and means arranged to be movedout of the path of said spool for moving said spool out of position onsaid support and shifting said device into position to receive a spoolplaced upon said support.

14. In a typewriter, a ribbon spool support, a device for controllingthe operation of a spool on said support, means for shiftingv saiddevice, and means for actuating said shifting means, said actuatingmeans being movable into one position to prevent movement of a spool4onto and off of said support and into another position to permitmovement of a spool onto and of of said support and to hold saidcontrol`device in a position in which it will not interfere withthemovement of a spool onto and ofi of said support. i

In testimony whereof I have signed my name to this specification on this12th day of May, A. D. 1920.

orio A. HoKANsoN.

